(Solved): I stood on the top of Cheadle hall and threw an egg upwards. It ianded on the ground after 3 second ...

I stood on the top of Cheadle hall and threw an egg upwards. It ianded on the ground after 3 seconds. The height of the egg above cheadie hall affer t seconds is $$h(t)=8t?5t^2$$ meters. (a) What is the noeed of the egg when it hit the ground? $$\mathrm{m}/\mathrm{s}$$ (b) Aftec how many seconds is the speed of the egg zoro for the first time? seconds (c) How Nigh is Cheadio hall? meters (d) How high above the ground did the egg go? metens